Generic function
Specifies the Back button in the specified multi-page dialog.
dialog-back-button-setter back-button dialog => back-button
<button>.
<dialog-frame>.
<button>.
duim-frames
duim-frames
Specifies the Back button in dialog. This is most useful in wizard frames, which typically have Back and Next buttons that let the user navigate forward and backward through the sequence of pages that comprise the dialog.
dialog-back-callback, page 749